body {
    margin: 0;
    padding-bottom: 4rem;
}

.top-img {
    width: 100%;
    height: 20rem;
    overflow: hidden;
    position: relative;
}

.top-img img {
    height: 100%;
    width: auto;
}

.top-img-bottom-des {
    position: absolute;
    bottom: 1rem;
    left: 1rem;
}

.top-img-bottom-des p {
    font-weight: 300;
}

.top-img-top-des p {
    font-weight: 300;
}

.top-img-top-des {
    position: absolute;
    top: 1rem;
    left: 1rem;
}

.content {
    width: 90%;
    margin: 2rem auto;
}

.content-img {
    margin-top: 2rem;
    width: 100%;
    height: 18rem;
    background-color: #f3f3f3;
    overflow: hidden;
    border-radius: .8rem;
}

.content-img img {
    height: 85%;
    width: auto;
}

.content-img p {
    margin: 0 !important;
    padding-left: 1rem;
}

.close-btn {
    position: fixed;
    top: 1rem;
    right: 1rem;
    background-color: #f3f3f3;
    border-radius: 1rem;
    width: 1.5rem;
    text-align: center;
    height: 1.5rem;
    z-index: 10;
}

.close-btn p {
    line-height: 1.5rem;
    font-weight: 300;
}

.content p {
    font-weight: 300;
    margin-top: 2rem;
}

.bg-blue {
    background-color: #007aff;
}

.bg-blue a {
    color: white;
}


.footer {
    background-color: #eceef1;
    text-align: center;
    padding: 2rem;
}

.footer div {
    margin: auto;
}

.footer h4 {
    color: #007aff;
    margin: .3rem;
    font-size: 1.3rem;
}

.footer p {
    font-weight: 300;
    font-size: .8rem;
    margin-bottom: .6rem;
}

.normal {
    width: 5rem;
    height: 5rem;
}

.bg-gray-dark {
    background-color: #6f6f6f;
}

.bg-gray-dark a {
    color: white;
}

.content-footer {
    height: 4rem;
    width: 95%;
    margin: auto;
    display: flex;
    border-radius: 1rem;
    background-color: #ececec;
    opacity: .95;
    align-items: center;
    justify-content: center;
    position: fixed;
    bottom: -4rem;
    left: 2.5%;
}

.app-des {
    margin-left: 1rem;
    margin-right: 1rem;
    flex-grow: 2;
}

.title {
    color: black;
}

.app-intro {
    font-weight: 300;
}


@keyframes hideBar {
    from {
        bottom: 1rem;
    }
    to {
        bottom: -4rem;
    }
}

@keyframes showBar {
    from{
        bottom: -4rem;
    }
    to{
        bottom: 1rem;
    }
}

.body-footer{
    width: 100%;
    margin-top: 2rem;
}


@media screen and (max-width: 1400px){
    .content-img{
        height: 25rem;
    }
    .top-img{
        height: 25rem;
    }
}



@media screen and (max-width: 1000px) {
    .content-img{
        height: 20rem;
    }
    .top-img{
        height: 18rem;
    }
}